骨质疏松症中的骨循环标志物 (β-CTX,PINP,ALP):与骨损失和骨折风险分层相关
Shiqiang Wu1, Liangming Wang1, Xiaolu Zhang1
1Department of Orthopedic, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China.
Frontiers in endocrinology
|January 21, 2026
概括
骨周转率标记的升高,包括I型原蛋白β-C端端子前 (β-CTX),I型原蛋白N端子前 (PINP) 和性酸酶 (ALP),与较低的骨矿物质密度 (BMD) 相相关,并预测骨质疏松症患者的骨折.
科学领域:
- 生物化学和分子生物学
- 骨科和骨代谢 骨科和骨代谢
- 临床诊断 临床诊断 临床诊断
背景情况:
- 骨质疏松症的特点是骨矿物质密度 (BMD) 低,骨折风险增加.
- 像I型原蛋白β-C终端端 (β-CTX),I型原蛋白N终端 (PINP) 和性酸酶 (ALP) 这样的骨周转标记 (BTM) 反映了骨重塑.
- 评估这些BTM与BMD的相关性及其对二次骨折的预测价值对于骨质疏松症管理至关重要.
研究的目的:
- 研究骨质疏松症患者的β-CTX,PINP,ALP和BMD之间的相关性.
- 评估这些生物标志物的二次骨折风险预测值.
- 评估BTM和BMD在骨折风险分层中的联合实用性.
主要方法:
- 该研究包括180名骨质疏松症患者和80名对照人群,将患者分为骨折和非骨折组.
- 皮尔森相关系数评估了β-CTX,PINP,ALP和BMD (腰椎,大腿部) 之间的关系.
- 二元物流回归和ROC曲线分析确定了二次骨折的风险因素和预测精度.
主要成果:
- 骨质疏松症患者的β-CTX,PINP,ALP比对照组更高,BMD也更低 (P < 0.001).
- 在BTM和BMD之间存在显著的负相关性 (r = -0.553至 -0.671,P < 0.001).
- 在骨折组中发现BTMs升高;β-CTX,PINP和ALP是二次骨折的独立风险因素. 结合BTM和BMD可以实现高预测精度 (AUC=0.943).
结论:
- 升高的β-CTX,PINP和ALP水平与骨质疏松症的骨髓质量减少有关.
- 这些BTM独立预测二次骨折风险.
- 将BTM与BMD集成,可以改善临床实践中的骨折风险评估和分层.
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